\(\tilde{C}(x)\)  being a master function that is independent of time.
In Eqs. (REF ) and (REF ), \(r=|\vec{r}_1 - \vec{r}_2|\) , \(\ell (t)\)  represents the average size of domains at time \(t\) , and \(\psi \)  is a space and time dependent order parameter, defined as the local concentration difference between the two species [1]}, [2]}, [3]}. Typically \(\ell \)  grows in a power-law fashion as [4]}, [5]}, [6]}, [7]}, [8]}
\(\ell \sim t^\alpha .\) 
